instrumentation
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Valco Instruments Co. Inc. Sales:
800–367–8424
Fax: 713–688–8106
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227
Gas Purifier and Thermal Conductivity Detector
Microvolume Thermal Conductivity Detector
TCD Thermal conductivity detectors
110 VAC
230 VAC
Description
Prod No
Prod No
Entire unit (cell and electronics)
TCD2-NIFE
TCD2-NIFE-220
Cell/oven assembly only Dual filament TCD2-NIFED
TCD2-NIFED-220
TCD controller only
TCD2-C
TCD2-C-220
Miniature Gas Purifiers
The Valco Miniature Helium Purifier
(HPM) and Miniature Nitrogen Purifier
(NPM) are designed to be installed
in a gas chromatograph’s flow path
immediately upstream of the injector.
The HPM/NPM will remove any
contaminants introduced by flow
controllers, elastomeric tube seals,
pressure regulators, crude traps, or
other system components that are not
completely clean and leak-tight.
Mini helium and nitrogen purifiers
Includes universal power supply.
Helium purifier
Nitrogen purifier
Description Prod No
Prod No
110 VAC
HPM
NPM
230 VAC
HPM-220
NPM-220
Our dual filament TCD is a stand-alone
unit consisting of the detector housing
and a controller with electrometer and
temperature controls. The detector
cell includes two separate nickel/iron
filaments, capable of independent or
referenced (differential) operation. Cell
volume and geometry are optimized
for capillary chromatography and
enhanced sensitivity at low flow
rates. (Recommended total flow rate:
2-10 mL/min.) Thermal stability is
maintained to ±0.02°C, resulting in
a stable, noise-free signal. A single
0‑1 millivolt attenuated output for
a strip chart recorder is provided
through the signal cable at the rear of
the controller, with 0-1 volt and 0-10
volt unattenuated signals available
through the remote signal cable.
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
